On 12-3-2015 14:02, Vishal Tiwari [email protected] [firebird-support] wrote: > > > Hi SET, > > I have already tried but still not getting the result. Last column > displays Null value in middle of some rows.
That is too be expected, it shows the a GROUP BY sorts in order of the columns so if you have (a, b, NULL), that will be sorted before (b, c, a) because a < b. Mark -- Mark Rotteveel
